Saw-handle



B. R. WATSON.

SAW HANDLE.

APPLICATION, flu-:n ocT.1. 1919.

Patented July 5, 1921.

In renof."

BAZEL It. WATSON, 0F EVERETT, WASHINGTON.

SAW-HANDLE.

Specification of Letters Patent.

Patented July 5, 1921.

Application led October 7, 1919. Serial No. 328,959.

To all whom t may concern.'

y Be it known that I, BAZEL R. WATSON, a citizen of the United States, residing at Everett, in the county of Snohomish and State of lashington, have invented certain 'new and useful Improvements in Saw-Han! d les, of which the following is a specification.

This invention relates to saw handles and is an improvement on the g construction shown in the United States Patent' No. 981,100, granted to C. M. Minton, January 10,1911.

It has been found that a saw constructed in accordance with the above mentioned patent cannot be manufactured cheaplyY enough to meet with commercial favor when lplaced upon the market and therefore one of the principal objects of this invention is to improve and simplify the constructionof this saw handle so that the same may be successfully and economically manufactured.

A further object of this invention is to improve the constructionof the saw handle shown in the above mentioned patent whereby the several partsV of the handle may be conveniently assembled and reliably attached to a saw.

A further object of the invention is to provide a saw handle having novel means for securing the handle in an adjusted position with relation to the blade whereby the blade may be positioned at any desired angle with relation to the handle.

Other objects and advantages of the in- Yvention will be apparent during the course of the following description.

In the accompanying drawing forming a part of this application andin which llkeV numerals are employed to designate like parts throughout the same,

Figure 1 is a Vperspective view of the saw handle attached to a saw blade,

Fig. 2 isa vertical section through the handle, Y Y.

Fig. 3 is a group perspective of a locking device embodied in the invention.

In the drawingwhereinfor the purpose vof illustration is shown a preferred embodiment of my invention, the numeral 5 designates a casing or housing including longitudinally alined sockets 6 and 7 and a transversely extending tubular extension 8. A` relatively stationary handle 9 is secured within the socket 7 by a transversely extending rivet l0,

As in the case of the aforementioned patent a guard or shield 11 is provided with a rearwardly extending nipple 12 having an interlorly screw threaded portion 13 receivlng and having engagement with a threaded sleeve 14. A bolt 15 slidably extends through the sleeve V14 and nipple 12 and is provided with a head 16 which engages an annular shoulder 17 formed in the casing 5. The rear end of the sleeve 14 engages the head 16 and is limited in its rearward movement thereby. The forward portion of the bolt 15 is bifurcated to provide arms 18 between which a saw blade 19 is adapted to be arranged. A locking pin or other retalnlng element 20 is passed through the arms 18 and the saw blade 19 for securing the blade 19 to the bolt 15. The front face ofthe guard 11 is provided ywith a longitudlnally extending groove 21l receiving the rear end'portion of the blade 19. The lower end portion of the guard 11 is bent forwardly to provide an arm 22 adapted to extend over the rearmost teeth of the blade for preventing said teeth from cutting into the flesh. Y

As in the case of the Minton ypatent on which this invention is an improvement, rotation .of the sleeve 14 within the nipple 12 forces the guard 11 into -rigidengagement with the blade and thereby secures the same in an adjusted position. Whenit-is desired to release the guard from contact with the blade preparatory to removing theblade, the sleeve-14is rotated in the opposite direction for drawing the guard 11 rearwardly from the blade.l l

For the purpose of locking the sleeve 14 to the handle whereby the` sleeve may be rotated with the handle I have provided a locking loop 23 which is adapted to surround the rear end portion ofthe sleeve and be brought into locking engagement with the same. The loop 23 is provided'with an integral exteriorly screw threaded shank 24 adapted to be threaded into a sleeve'25. As illustrated in Fig. 2, the sleeve 25. has its rear end portion extended centrally vwithin the forward end portion of a rotatable handle 26 and is rigidly secured to the handle by a transversely extending rivet 27. A locking collar 28 is slidably arranged on the shank 24 and is provided with pairs of downwardly extending teeth 29 adapted to bite into the sleeve'14 and coact with the loop 23 in preventing rotation of the sleeve Fig. 2 the forward endportion of the exteriorly screw threaded sleeve 25 is extended beyond the handle 26 and engages the rear end portion of the lockingcollar 28 I for forcing the teeth of the same into rigid engagement with the sleeve 14. As the locking loop 23 is drawn upwardlyinto locking engagement with the adjacent portion Vof the ysleeve 14, the locking collar 28-is drawn downwardly into locking engagement with the opposite side of the sleeve whereby the sleeve 14 is rigidly clamped to the handle. A coiled spring 31 is arrangedabout the forward portion of the sleeve 25 and is confined between the forward end of the handle 26 and the locking collar 28. The coiled spring 31 is adapted Vto retain the collar 2S in position when the handle 26 is not tightened. Specifically theI spring 31 prevents the teeth 29 from riding up onto `the adj acent portion of the loop 23.Y

In assembling my improved handle,rthe

" locking loop 23 and associated elements are arranged" within the housing 5 and the sleeve 14'is then assed through the locking loop 23. The nipple 12 is then engagedwith the sleeve 14 preparatory to attaching the blade 19 to the forward vportion of the Vbolt 15. The loop 23 and the collar 29 are now brought into locking engagement with the sleeve 14 by a proper Vrotation of -the handle 26. VBy revolving the handle 26 about the axis of the bolt 15, the guard 11 is forced into locking engagement with the rear end of the blade.

When it is desired to adjust the handle at an vangle to the blade, the section 26 .may

Y be loosene'dgslightly to release the locking connection with the sleeve 14 and the handle may thenbe rotated to the desired degree, When the handle has been positioned as desired, the section 26 is again rotated to bring the collar 28 andthe loop 23 into locking engagement with the sleeve 14.

In constructing the locking device as set forth above the necessity of threading the socket 6 has been avoided and the circumferential teeth on the sleeve 14 have been made unnecessary thereby reducing the cost of the sleeve." The plug cap 26 .of the Min.- ton structure has been eliminated. The T- v shaped hou'singof thepresent device is entirely unobstructed throughout its-extent,

there being no webs extending acrossand closing the axially alined branches of the housing, and no part of the housing is exteriorly threaded so that the cost of the housing is less than the cost of the housing employed in the patented device. .There is no upsettingoperation needed in producing any part of my structure nor in assembling the parts after they tare produced. The locking pawl employed in the Minton structure is dispensed with as well as the web in which said pawl'plays and as aresult, the cost of the housing is materially reduced.

1t is to be Viniderstood that thev form of the inventionherewith described and shown is to be taken as a preferred` embodiment of the same and that such minor changesV in the construction of parts may be madeas will remain within the spirit of the invention and the scope of'what is claimed.

saw handles in- Y housing and engaging 'one end of saidY sleeve Y and Vprovided y with an exteriorly screwthreaded shank, the'V opposedsurfaces ofthe loop and the sleeve being smooth, a locking collar' slidably mounted on said shank'and having Vpairs of teeth on opposite sides of said loop adapted to engage the sleeve, 'a handle f having one end portion rotatably arranged within the housing, an interiorly screwthreaded sleeve'V fixed concentrically yto* and projecting from said handle and Vhaving threaded engagementwith said shank, said handle being adapted to be rotatedforfsimultaneously engaging the teeth of 'said ,collarV and `said loop with said iirst-named sleeve, and a coiled spring confined between the opposed ends of said locking collarand said handle around the sleeve projecting from the handle for securing the collarnin posi-V tion.

2. A saw handle posed within the lateral branch/of the housing, a fastening member extending through the, sleeve to secure the saw blade and .hav-

e Y Y iio including a 'T-shaped housing, .the interior of which is entirely unobstructed, a guardhav'lng a n ipple'dising ahead at its .outer end. at theV exterior of the housing to, cover the outer end of said sleevefa locking loopsurrounding oneend of said sleeve and provided with a threaded shank disposed withinA ione longitudinal branch ofthe housing,-the opposed surfaces of the loop and sleeve being smooth, a locking collar encircling said Y shank and pro-` vided with pairs of forwardly extending teeth'adapted to' engage said' sleeve'at opposite sidesof'thelocking loop, a'handle' Ifotatably mounted atl the endof said longitudinal branch o-f the housing, a second sleeve fixed to said handle and Vvextending concentrically from the same within said branch and having threaded engagement with said shank, the forward end portion of said sleeve being arranged to abut the rear end of said collar for forcing the teeth of the same into engagement about said i'irst-named sleeve, and a coiled spring surrounding the extended portion of said threaded sleeve and confined between the adjacent ends of said handle and said locking collar to retain the teeth of said collar in engagement with the adjacent portion of said first-named sleeve.

3. In a saw handle, the combination of a T-shaped housing the interior of which is unobstructed throughout, a guard constructed to engage the end of a saw blade and having a nipple extending within the lateral branch of the housing, a sleeve disposed within said branch of the housing and operatively engaging said nipple whereby to move the guard into or out of engagement with the saw blade, a fastening member er;- tending through said sleeve to secu-re the blade, a handle member fixed to one longitudinal branch of the housing, a second handle member rotatably itted to the end of the other longitudinal branch of the housing, and a telescopic locking device. disposed within the housing and connecting said second handle member and the outer end portion of said sleeve.

In testimony whereof I affix my signature.

BAZEL R. VATSON. [Ls] 

